JP2017118905A - Scalp pore cleansing brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scalp pore cleansing brush which facilitates the removal of fallen hair by a hand and is excellent in a cleaning function of scalp pores.SOLUTION: A scalp pore cleansing brush 10 is equipped with a plurality of projections protruding from a brush face of a base. A part of or all of the plurality of the projections are projections 14 with a hard and a soft projections. Each of the projections 14 with a hard and a soft projections has a base part 14a which protrudes from the brush face 13 and is constituted by elastomer, and has, at a tip end part of the projection 14, a first tip end projection 14b constituted by elastomer and a second tip end projection 14c constituted by a rigid resin that is more rigid than the elastomer constituting the first tip end projection.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pore cleaning brush.

  As a hair brush used for washing hair or cleaning the hair, for example, a brush provided with a spherical body at the end of a brush-like protrusion, a thing having a substantially conical protrusion, or a different thickness and length Various forms such as a combination of protrusions provided are known. Recently, in addition to the function of scratching the scalp and the function of scratching hair, the synthetic resin has a function of removing sebum that causes dirt and odor and washing pores, and has a massage effect on the scalp and pores. A massage brush that combines a large-diameter bristle made of an elastic material and a bristles-like fine bristle has also been developed (see, for example, Patent Document 1).

  Furthermore, in order to improve the scalp massage effect, a plurality of protrusions standing on the base and separating the hair are formed using a flexible material such as an elastomer or synthetic rubber, and a plurality of protrusions are formed at the tip of the protrusion. A scalp brush has also been developed in which small protrusions are provided so that the small protrusions are flexibly bent and brought into contact with the scalp at multiple points (see, for example, Patent Document 2).

  As such a brush, the present applicant also applies a plurality of protrusions mainly exhibiting a function of scraping hair and a plurality of protrusions mainly exhibiting a massage effect to the brush surface of the base using a flexible elastomer resin. Protruding as protrusions of different shapes, it has been proposed a scalp brush that can provide an excellent massage effect, and can also exhibit an excellent sebum removal function and pore cleaning function (Patent Document 3, 4).

Japanese Patent Laid-Open No. 2000-60640 JP 2005-160684 A JP 2007-282682 A JP 2009-240768 A

In the massage brush described in Patent Document 1 described above, the pore cleaning hair bundle made of a bristle bundle protrudes from the same brush surface as the protrusion made of elastomer. Therefore, it is difficult for the finger to reach the vicinity of the brush surface, and it is sometimes difficult to remove the hair entangled with the hair bundle for cleaning the pores by hand.
Moreover, in the brush which has only the processus | protrusion which consists of elastomers, it might be difficult to comprise the brush which was more excellent in the massage effect and the pore cleaning effect.

  Accordingly, an object of the present invention is to provide a pore cleaning brush that can solve various problems of the prior art.

  The present invention is a pore cleaning brush provided with a plurality of protrusions protruding from a brush surface of a base, wherein some or all of the plurality of protrusions are protrusions with hard and soft protrusions, A base portion made of an elastomer protruding from the brush surface, a first tip protrusion made of elastomer at a tip portion of the protrusion, and a hard resin that is a resin harder than the elastomer constituting the first tip protrusion The present invention provides a pore cleaning brush and a pore cleaning brush having a second tip protrusion configured as described above.

  The pore cleaning brush of the present invention is not easily entangled with hair loss, is easily removed by hand, and has an excellent pore cleaning function.

FIG. 1 is a perspective view of a pore cleaning brush according to an embodiment of the present invention. FIG. 2 is a plan view showing a brush surface of the pore cleaning brush shown in FIG. 3 is a cross-sectional view taken along the line II of FIG. 2 (a cross-sectional view taken along the long axis direction of the brush surface). FIG. 4 is a cross-sectional view showing the cross section along the line II-II in FIG. 2 (the cross section along the minor axis direction of the brush surface) with the cross section of the gripping portion omitted. 5A is an enlarged perspective view showing the spatula-like protrusion of the pore cleaning brush shown in FIG. 1, FIG. 5B is an enlarged plan view of the spatula-like protrusion seen from the tip side, and FIG. 5C. These are the VV line expanded sectional views of Fig.5 (a). 6A is an enlarged perspective view of the first cone-shaped protrusion, and FIG. 6B is a schematic cross-sectional view taken along the line VI-VI in FIG. 6A. FIG. 7A is an enlarged front view of the second cone-shaped projection, and FIG. 7B is an enlarged plan view of the second cone-shaped projection as viewed from the tip side. FIG. 8 is an enlarged perspective view showing another example of a spatula-like projection as a projection with hard and soft projections, and is a view corresponding to FIG. FIG. 9A and FIG. 9B are enlarged perspective views showing examples of frustum-shaped protrusions as the protrusions with hard and soft protrusions, respectively. FIG. 10A is an enlarged front view showing still another example of the protrusions with hard and soft protrusions, and FIG. 10B is an enlarged perspective view showing the portion P of FIG. 10A further enlarged.

Hereinafter, the present invention will be described based on preferred embodiments thereof.
A pore cleaning brush 10 according to a first embodiment of the present invention is a pore cleaning brush suitable for pore cleaning of a human head, and has a gripper 11 as shown in FIGS. A plurality of spatula-shaped projections 14, first cone-shaped projections 15, and second cone-shaped projections 16 are erected on the 12 brush surfaces 13. Standing means to stand in a standing state.

  The pore cleaning brush 10 of the present embodiment has a gripping part 11 sandwiched between fingers when, for example, washing hair or cleaning the hair, and a palm is brought into close contact with the upper surface of the base 12 opposite to the brush surface 13. Then, the brush 10 is grasped while covering the upper surface, and the brush 10 is scraped while separating the hair in a state where the tip portions of the plural types of protrusions 14 to 16 erected on the brush surface 13 are pressed against the scalp. In combination with the action of detergents, hair care agents, cosmetics, etc. applied to the scalp and hair as needed, it is possible to efficiently remove sebum and clean pores. It is intended to provide a massage effect.

Each of the spatula-like protrusions 14 in the present embodiment is a “protrusion with hard and soft protrusions” in the present invention, and has a base portion 14 a made of an elastomer protruding from the brush surface 13 as shown in FIGS. 1 and 5. Further, a first tip protrusion 14b made of an elastomer that protrudes further from the base portion 14a to the tip portion of the protrusion 14 and a second resin made of a hard resin that is harder than the elastomer constituting the first tip protrusion 14b. It has a tip protrusion 14c. “Hard and soft projections” of “projections with hard and soft projections” mean the first tip projections and the second tip projections.
Further, the spatula-shaped protrusion 14 has a flat cross-sectional shape of the base portion 14a, and the first tip protrusion 14b and the second tip protrusion 14c are formed side by side in the long axis direction X of the flat cross-sectional shape. ing.

  The first tip protrusion 14b has a base end diameter d on the base portion 14a side of preferably 1 mm or more, and more preferably 1.5 mm or more, for the purpose of obtaining a scalp cleaning effect and mainly a massage effect. 5 mm or less is preferable, 3.5 mm or less is more preferable, 1 mm or more and 5 mm or less are preferable, and 1.5 mm or more and 3.5 mm or less are more preferable.

The second tip projection 14c is easy to reach the scalp and pores without bending while scraping the hair, in order to make the tip easily enter the pores of the human head and exhibit an excellent pore cleaning function. From this point of view, it is preferable to have a tapered shape toward the tip as shown in FIG. From the same viewpoint, the diameter d1 of the base end on the base portion 14a side of the second tip protrusion 14c is preferably 2 mm or less, more preferably 1.6 mm or less, and preferably 0.5 mm or more, more preferably 0. 0.8 mm or more, preferably 0.5 mm or more and 2 mm or less, more preferably 0.8 mm or more and 1.6 mm or less.
The diameter d2 of the tip of the second tip protrusion 14c is preferably about 0.3 mm or less, more preferably about 0.05 mm or more and 0.3 mm or less, which is about the size that fits into the pore of the head.

The spatula-shaped protrusion 14 in the present embodiment improves the scrub cleaning effect and the massage effect as well as the pore cleaning effect. Therefore, the second tip protrusion 14c is closer to the tip and the base end than the first tip protrusion 14b. The thickness is preferably smaller than the first tip protrusion. Specifically, not only the diameter d2 of the distal end portion of the second distal end protrusion 14c but also the diameter d1 of the proximal end on the base portion 14a side is smaller than the diameter d of the proximal end on the base portion 14a side of the first distal end protrusion 14b. Is preferred.

As shown in FIGS. 4 and 5A, the second tip protrusion 14c is formed of a portion protruding from the tip of the base portion 14a in a resin member 14t partially disposed in the base portion 14a.
More specifically, the resin member 14t constituting the second tip protrusion 14c passes through the base portion 14a of the protrusion 14 with hard and soft protrusions in the height direction thereof. The resin member 14t has a tapered shape in the base portion 14a from the base end (bottom plate portion 18a side) of the protrusion 14 with hard and soft protrusions toward the tip end (second tip protrusion 14c side).

Note that the second tip protrusion 14c in the present embodiment has a circular cross-sectional shape, but the cross-sectional shape of the second tip protrusion 14c is not limited to a circular shape, and may be an ellipse, a triangle, a rhombus, a polygon, or the like. An irregular cross-sectional shape or the like may be used.
The diameters of the base end diameter d1 of the second tip projection 14c, the diameter d2 of the tip end of the second tip projection 14c, the diameter d of the first tip projection 14b, etc. are the diameters of the respective cross-sectional shapes being circular. In the case other than a circle, it means the equivalent circle diameter (the diameter of a circle having the same area as the cross-sectional area).

  As shown in FIGS. 1 and 6, the first cone-shaped protrusion 15 has a base portion 15 a made of an elastomer protruding from the brush surface 13, and the base portion 15 a has a truncated cone shape and has a distal end. The portion is provided with a plurality of tip protrusions 15b, 15c made of elastomer. The first cone-shaped protrusion 15 is provided for the purpose of obtaining a scalp and other scalp cleaning effect and a massage effect. However, the base portion 15a has a truncated cone shape and is less deformable than the base portion 14a of the spatula-shaped protrusion 14. Therefore, it can be used by being pressed more strongly against the skin. By providing the 1st cone-shaped processus | protrusion 15, the washing | cleaning effect of a skin and a massage effect can be improved, and the washing | cleaning effect of a pore can also be improved. It should be noted that the truncated cone shape or the truncated pyramid shape described later includes a substantially truncated cone shape or a substantially truncated pyramid shape within a range where the effects of the present invention are exhibited.

Each of the second cone-shaped projections 16 is a cone-shaped projection having no second tip projection 14c made of hard resin or a plurality of tip projections at the tip portion of the projection, as shown in FIG. A base portion 16a made of an elastomer protruding from the brush surface 13 is provided, and a tip end portion 16t is formed in a convex curved surface shape, more specifically, a hemispherical shape. The second cone-shaped projection 16 is provided for the purpose of obtaining a massage effect.
As described above, the hair loss is not easily tangled, and the hair loss is easily removed by hand, and the protrusion with the hard and soft protrusion has a base portion made of an elastomer protruding from the brush surface, and the tip of the protrusion The portion has a first tip protrusion made of an elastomer and a second tip protrusion made of a hard resin that is a resin harder than the elastomer constituting the first tip protrusion.

As shown in FIG. 3, the base 12 has a base main body 17 whose bottom surface is opened as an elliptical mounting opening 17 a and whose top surface is a smooth convex curved surface, and a mounting opening 17 a of the base main body 17. It consists of a part of the composite molded body 18 that is fitted and fixed so as to be closed.
The composite molded body 18 has an elastomer portion 19 formed from an elastomer and a hard resin portion 20 formed from a hard resin that is a resin harder than the elastomer. In the composite molded body 18 in the present embodiment, the elastomer portion 19 and the hard resin portion 20 are integrally molded by two-color molding or insert molding. Instead of this, the elastomer portion 19 and the hard resin portion 20 may be separately formed by any method and then integrated.

The base body 17 is a plastic molded product made of, for example, polyethylene or polypropylene. The base body 17 is formed in an elliptical shape in plan view, for example, having a major axis length of about 80 to 100 mm and a minor axis length of about 70 to 90 mm.
The base body 17 is provided with a mounting portion 17b for arranging the bottom plate portion 18a of the composite molded body 18 inside thereof, and the bottom plate portion 18a of the composite molded body 18 is arranged on the mounting portion 17b, The composite molded body 18 is fixed to the mounting portion 17b of the base body 17 by fitting the fitting convex portion and the fitting concave portion formed on the peripheral portion of the mounting opening 17a and the peripheral portion of the bottom plate portion 18a. Has been. The bottom board portion 18 a of the composite molded body 18 has an elliptical shape in plan view that substantially matches the opening shape of the mounting opening 17 a of the base body 17.
In addition, on the upper surface of the base main body 17, a grip portion 11 that protrudes upward in a shape of a high wave warped backward is provided in the front portion of the base main body 17. Here, the front and the rear are a direction toward one end on the fingertip side and a direction toward the other end on the wrist side when the base 12 is held in a hand with the grip portion 11 sandwiched between fingers.

As shown in FIG. 4, the hard resin portion 20 of the composite molded body 18 includes a plate-like portion 20 a located on the bottom plate portion 18 a and a protrusion protruding from the plate-like portion 20 a toward the inside of each of the protrusions 14 with soft protrusions. And a forming portion 14t. This protrusion forming portion 14t penetrates the base portion 14a of the protrusion 14 with hard and soft protrusions, and a portion further protruding from the base portion 14a forms a second tip protrusion 14c.
The elastomer part 19 of the composite molded body 18 also has a plate-like part 19a located on the bottom board part 18a and a projection-forming part 19b protruding from the plate-like part 19a.
The protrusion forming portion 19b of the elastomer portion 19 protrudes at a position on each of the protrusion 14 with the hard and soft protrusions, the first cone-shaped protrusion 15, and the second cone-shaped protrusion 16. And the protrusion formation part 19b which protrudes in the position of the processus | protrusion 14 with a hard and soft protrusion is a part except the processus | protrusion formation part 14t of the hard resin part 20 in the 1st front-end | tip protrusions 14b and 14b and the base 14a in the processus | protrusion 14 with a soft protrusion. The projection forming portion 19b that protrudes at the position of the first cone-shaped projection 15 or the position of the second cone-shaped projection 16 is the first cone-shaped projection 15 or the second cone. The entire protrusion 16 is formed.
In the composite molded body 18, the plate-like portion 19 a of the elastomer portion 19 forming the bottom plate portion 18 a serves as the bottom surface of the base 12 to form the brush surface 13, and the portion protruding from the brush surface 13 is a spatula-like protrusion 14, a first cone-shaped projection 15 and a second cone-shaped projection 16 are formed. The brush surface 13 also has an elliptical shape in plan view, like the bottom plate portion 18a.

Here, the elastomer resin that forms the elastomer portion 19 of the composite molded body 18 is a polymer exhibiting rubber-like elasticity, and natural rubber (NR), diene rubber, non-diene rubber, thermoplastic elastomer, or the like is used. Can do. Among these, it is preferable to use a thermoplastic elastomer from the viewpoint that molding processing by injection molding is possible.
Examples of the diene rubber include isoprene rubber (IR), butadiene rubber (BR), styrene / butadiene rubber (SBR), chloroprene rubber (CR), and nitrile rubber (NBR). Non-diene rubber includes butyl rubber. (Isobutylene / isoprene rubber (IIR)), ethylene / propylene rubber (EPM), ethylene / propylene / diene rubber (EPDM), urethane rubber (U), silicone rubber (Q) and the like.
Thermoplastic elastomers include styrene elastomers (TPS) such as SBS, SIS, SEBS, SEPS, olefin elastomers (TPO), ester elastomers (TPC), urethane elastomers (TPU), amide thermoplastic elastomers (TPA). ), Thermoplastic rubber cross-linking (TPV) and the like.
These elastomers can be used alone or in combination of two or more.

  The elastomer resin forming the elastomer portion 19 of the composite molded body 18 has a hardness (Shore A hardness) measured in accordance with ASTM D2240 of preferably 30 or more, more preferably 40 or more. It is preferably 80 or less, more preferably 70 or less, more specifically, preferably 30 or more and 80 or less, and more preferably 40 or more and 70 or less.

[Measurement method of Shore A hardness]
The pressure surface of a rubber hardness tester held with both hands is pressed vertically onto the flat surface of the sample at a constant speed from above, and the value within 1 second is defined as “hardness” after close contact. The measurement position of the sample is 12 mm or more inside from the end of the sample, and the interval between measurement points is 6 mm or more. The sample used for the measurement has a length and width of 25 mm or more and a thickness of 6 mm or more, respectively, and the test environment is a temperature of 23 ± 2 degrees and a humidity of 50 ± 5%. When a median value or an average value at five locations is adopted as a measurement value and 50 is indicated by a rubber hardness meter (manufactured by TECLOCK Co., Ltd., GS709N type A), the Shore A hardness is 50 (“A50”).

  By using such a material as the elastomer resin that forms the elastomer portion 19 of the composite molded body 18, the spatula-like projection 14, the first cone-like projection 15 and the The second cone-shaped protrusion 16 can be pressed against the scalp. Therefore, it is possible to give an appropriate stimulus, an excellent massage effect is obtained, and in combination with the action of a cleaning agent applied to the scalp and hair as necessary, removal of sebum and washing of pores is possible. It becomes possible to perform efficiently. When the pore cleaning brush 10 is used together with a shampoo or a hair restorer, the elastomer portion 19 is preferably formed using an olefin elastomer or a styrene elastomer that is excellent in chemical resistance against these. Specific examples of the elastomer include trade name elastomer AR (the hardness of 55 to 60), which is a styrene-based elastomer manufactured by Aron Kasei Co., Ltd.

On the other hand, as the resin that forms the hard resin portion 20 of the composite molded body 18 or the hard resin that forms the second tip projection 14c, the elastomer resin that forms the elastomer portion 19 of the composite molded body 18 or the first tip projection 14b. A resin having a higher hardness than the elastomer forming can be used without particular limitation. As hard resin in this invention, elastomer resin (various) and polyolefin, for example, low density polyethylene (LDPE), linear polyethylene (LLDPE), and polyprolene (PP) can be used.
The resin that forms the hard resin portion 20 of the composite molded body 18 or the hard resin that forms the second tip protrusion 14c has a Shore A hardness of 65 to 100, or a Shore D hardness measured by the following method. Is preferably 1 or more and 45 or less, and more preferably the Shore A hardness is 70 or more.
The difference in hardness between the resin forming the hard resin portion 20 of the composite molded body 18 and the elastomer resin forming the elastomer portion 19 of the composite molded body 18, or the hard resin forming the second tip projection 14c and the first tip projection 14b. The difference in hardness from the elastomer that forms is preferably 10 or more, more preferably 15 or more in Shore A hardness, and preferably 5 or more, more preferably 10 or more in Shore D hardness.

[Measurement method of Shore D hardness]
The Shore D hardness is measured using a rubber hardness meter (GS702N type D) manufactured by Teclock Co., Ltd. When the Shore A hardness is measured by the same method as the Shore A hardness measurement method and 50 is indicated by a rubber hardness meter (GS709N type D), the Shore D hardness is 50 (“D50”).

  The spatula-like protrusion 14 according to the present embodiment will be described in more detail. The spatula-like protrusion 14 has a cross-sectional shape of a root portion along the brush surface 13, for example, a long axis length of about 5 to 20 mm and a short axis. It has a flat elliptical shape with a length of about 2 to 15 mm (see FIG. 2). Along with that, as shown in FIGS. 5A and 5B, a spatula-shaped base portion 14a that is slightly tapered toward the tip while maintaining a substantially similar cross-sectional shape; The first tip protrusion 14a protrudes further upward from the tip of the spatula-shaped base portion 14a, and the second tip protrusion 14c protrudes further upward from the tip of the spatula-shaped base portion 14a. More specifically, the spatula-like protrusion 14 has two kinds of tip protrusions 14b and 14c as tip protrusions disposed at the tip of the spatula-shaped base portion 14a, and the first tip protrusion 14b and the second tip protrusion 14b. As shown in FIG. 5C, the tip protrusion 14c is formed side by side in the long axis direction X having a flat cross-sectional shape. The second tip protrusion 14c is formed between two first tip protrusions 14b formed at intervals in the major axis direction X.

The first tip projection 14b provided at the tip portion of the spatula-like projection 14 preferably has a conical shape with the tip formed in a convex curve shape. The conical shape includes a substantially conical shape.
The spatula-shaped protrusion 14 has a height h1 from the brush surface 13 to the tip of preferably 10 mm or more, more preferably 15 mm or more, and preferably 30 mm or less, more preferably 25 mm or less.
The first tip protrusion 14b has a height h3 from the tip of the spatula-shaped base portion 14a of preferably 2 mm or more, more preferably 3.5 mm or more, still more preferably 4 mm or more, and preferably 15 mm or less, more preferably Is 10 mm or less, more preferably 8 mm or less.
The height h3 of the first tip protrusion 14b is preferably 50% or less, more preferably 40% or less, and still more preferably 35% or less with respect to the height h1 of the spatula-shaped protrusion 14. Is 15% or more, more preferably 20% or more.

The second tip protrusion 14c has a height h4 from the tip of the spatula-shaped base portion 14a, preferably 2 mm or more, more preferably 3.5 mm or more, still more preferably 4 mm or more, and preferably 15 mm or less. More preferably, it is 10 mm or less, More preferably, it is 8 mm or less.
The height h4 of the second tip protrusion 14c is preferably 50% or less, more preferably 40% or less, and still more preferably 35% or less with respect to the height h1 of the spatula-shaped protrusion 14. Is 15% or more, more preferably 20% or more.
The second tip projection 14c provided at the tip portion of the spatula-like projection 14 has a cone-like shape in which the tip is a hemispherical convex curved surface, more specifically, a tip-like convex curved shape having a hemispherical tip. It is formed in a conical shape.

The height h1 of the spatula-shaped protrusion 14 is the higher of the height from the brush surface 13 to the tip of the first tip protrusion 14b and the height from the brush surface 13 to the tip of the second tip protrusion 14c. It is.
The height from the brush surface 13 to the tip of the first tip protrusion 14b and the height from the brush surface 13 to the tip of the second tip protrusion 14c may be the same or different. The difference is preferably within 2.0 mm, more preferably within 1.0 mm.
In addition, the second tip protrusion 14 c is disposed between the tip protrusions 14 b and 14 b in the long axis direction X of the flat cross-sectional shape of the spatula-like protrusion 14. Between the tip protrusions 14b and 14b in the long axis direction X, for example, the interval s1 at the base is 0 to 5 mm, preferably 0.3 to 2 mm, and the interval s2 at the top is 1 to 7 mm, preferably 2 to 5 mm. .

The height h4 of the second tip protrusion 14c is preferably the same as or slightly lower than the height h3 of the first tip protrusion 14b. For example, the height h4 of the second tip protrusion 14c is the height of the first tip protrusion 14b. The h3 is preferably 90% to 110%, more preferably 95% to 105%.
Here, the height h3 of the first tip protrusion 14b, and when a plurality of first tip protrusions 14b are provided in one protrusion with hard and soft protrusions, the height of the first tip protrusion 14b having the highest height h3 is the height. Is compared with the height h4 of the second tip protrusion 14c as the height h4 of the first tip protrusion 14b.

The ratio (h3 / d) between the height h3 of each of the first tip protrusions 14b and the thickness (diameter) d of each root portion reaches the scalp and pores while scraping the hair when pressed against the scalp. From the viewpoint of facilitating, it is preferably 1 or more, more preferably 1.2 or more, and preferably 3.5 or less, more preferably 3 or less.
The ratio (h4 / d1) between the height h4 of the second tip protrusion 14c and the thickness (diameter) d1 at the root thereof is also easy to enter the pores of a human head, and an excellent pore cleaning function is exhibited. From this viewpoint, it is preferably 2.5 or more, more preferably 4 or more, and preferably 16 or less, more preferably 13 or less.

  In the first cone-shaped protrusion 15 in the present embodiment, the cross-sectional shape of the root portion along the brush surface 13 is, for example, a circle having a diameter of about 4 to 10 mm (see FIG. 2). At the same time, as shown in FIG. 6, a truncated cone-shaped base portion 15a that is slightly tapered toward the tip while maintaining a substantially similar cross-sectional shape, and further protrudes upward from the tip of the base portion 15a. And a plurality of tip protrusions 15b and 15c. The plurality of tip protrusions 15b and 15c are integrally formed with a base portion 15a made of an elastomer.

The first cone-shaped protrusion 15 has a height h5 from the brush surface 13 to the tip of preferably 12 mm or more, more preferably 15 mm or more, still more preferably 17 mm or more, and preferably 28 mm or less, more preferably Is 25 mm or less, more preferably 23 mm or less.
The tip protrusions 15b and 15c (the tip protrusion having the highest height when having a plurality of tip protrusions having different heights) have a height h7 from the tip of the truncated cone-shaped base portion 15a, preferably 0.5 mm or more. More preferably, it is 1 mm or more, preferably 5 mm or less, more preferably 3 mm or less.
The height h7 of the tip protrusions 15b and 15c is preferably 50% or less, more preferably 30% or less, and preferably 3% with respect to the height h5 of the first cone-shaped protrusion 15. Above, more preferably 5% or more.

  The number of tip projections of the first cone-like projection 15 is preferably plural, and the number of tip projections 15c formed in a ring shape is preferably 3 to 10, more preferably 4. -10. Further, the central tip protrusion 15b can be omitted.

  As shown in FIG. 2, the brush surface 13 of the pore cleaning brush 10 of the present embodiment has a plurality of parallel virtual straight lines YY drawn on the brush surface 13 (in this embodiment, an elliptical brush surface). 13 and 5 lines extending in a direction parallel to the minor axis direction) are divided into a plurality of protrusion rows R1 to R6, and the spatula protrusion 14, the first cone-shaped protrusion 15 and the second The cone-shaped projections 16 are arranged. Of the six protrusion rows R1 to R6 divided by the five lines, the four protrusion rows R2 to R5 excluding the rows at both ends include three spatula protrusions 14 and the first or The second two cone-shaped projections 15 and 16 are alternately arranged.

  In the protrusion rows R2 to R5, the plurality of spatula protrusions 14 and the first or second cone-shaped protrusions 15 and 16 disposed between the spatula protrusions are cross-sectional shapes of the spatula protrusions 14. Are arranged in a state substantially in series in a direction parallel to the major axis direction (X direction), and there are a plurality of such projection rows in a direction perpendicular to the row (a direction along the major axis direction of the brush surface 13). A line is formed. Between adjacent protrusion rows, a band-like interval region (not shown) having a width of 7 to 15 mm and extending along the YY line and having no protrusions is formed. With such an arrangement, it is possible to effectively avoid or reduce the attachment and tangling of hair to the root portions of the protrusions 14 to 16, and to slide a finger along the protrusion row or to flow shower water. Thus, even if hair adheres to or entangles with the root portion, it can be easily removed.

  When using the pore cleaning brush 10 of the present embodiment having the above-described configuration, for example, the grip portion 11 is sandwiched between fingers, and the palm is placed on the upper surface of the base 12 opposite to the brush surface 13. Closely gripping the brush 10 so as to cover the upper surface, moving the brush 10 with a plurality of spatula protrusions 14 protruding from the brush surface 13 pressed against the scalp, and if necessary, a cleaning agent, While applying hair care agents, cosmetics, etc. to the scalp and hair, shampoo and care for the hair.

In the pore cleaning brush 10 of the present embodiment, each of the second tip protrusions 14c of the spatula-shaped protrusion 14 protrudes further from the base 14a protruding from the brush face 13 instead of from the brush face 13, so that the second The tip protrusion 14c can easily reach the pores of the scalp, and the second tip protrusion 14c can be brought into contact with the pores with a stronger force than when protruding from the brush surface. Further, the tip of the second tip protrusion 14c reached by the scalp is likely to enter the pore due to its small diameter d2.
Thereby, according to the brush 10 for pore cleaning of this embodiment, the outstanding pore cleaning function is exhibited. In addition, since the first tip protrusion 14b and the second tip protrusion 14c protrude from the base portion 14a, the hair is not easily entangled with these hair bundles, and the hair is entangled with the first tip protrusion 14b and the second tip protrusion 14c. However, the hair loss can be easily removed with a finger. This is particularly effective when the amount of hair is large or when the hair is long.

  Moreover, in the pore cleaning brush 10 of the present embodiment, the second tip protrusion 14c is provided together with the first tip protrusion 14b made of elastomer, and the hair is separated by the first tip protrusions 14b and 15b. The second tip protrusion 14c can be inserted into the pore. Moreover, the massage effect is also acquired by the front-end | tip protrusion 14b. Thereby, it is further excellent in the pore cleaning effect.

Further, the spatula-like projection 14 in the present embodiment has a plurality of first tip projections 14b, and the second tip projection 14c exists between the first tip projections 14b and 14b. Therefore, when the brush 10 is moved reciprocally, the hair is scraped by the tip protrusion 14b and the second tip protrusion 14c is not easily fallen while moving in either direction. Therefore, the second tip protrusion 14c reaches the pores of the scalp (skin) more reliably, and an excellent pore cleaning function is exhibited.
The effect of scraping the hair by the first tip protrusion 14b of the spatula-shaped protrusion 14 and the effect of preventing the tip of the second tip protrusion 14c from collapsing the pore cleaning brush 10 with the long axis direction (X direction) ) Is more remarkably manifested when reciprocating.

  Further, in the pore cleaning brush 10 of the present embodiment, when the pore cleaning brush 10 is lightly applied to the scalp S, only the first tip projection 14b and the second tip projection 14c of the spatula projection 14 hit the scalp S. The tip projection 15b of the first cone-shaped projection 15 hits the scalp by pressing strongly against the scalp, and the tip portion of the second cone-shaped projection 16 may be designed to hit the scalp by further pressing. preferable. Accordingly, the pores can be washed while controlling the strength of the massage effect by adjusting the pressing force.

  Further, the second tip projection 14c of the spatula-like projection 14 in the present embodiment is a portion that protrudes from the tip of the base portion 14a in a hard resin partially disposed in the base portion 14a. Therefore, it is possible to prevent the second tip protrusion 14c from falling or detaching on the base portion 14a.

In the pore cleaning brush 10 of the present embodiment, as shown in FIG. 4, the hard resin forming the second tip protrusion 14 c exists through the base 14 a of the protrusion in the height direction of each base. In addition, the end opposite to the tip side forming the second tip protrusion 14 c is fixed inside the brush surface 13 in the base 12. Therefore, even when the spatula-like protrusion 14 is bent and deformed by a strong force such as massage, the fixed state on the end E side is stably maintained, and the excellent pore cleaning function of the second tip protrusion 14c is reliably exhibited. The
Further, in the pore cleaning brush 10 of the present embodiment, since the hard resin forming the second tip protrusion 14c is present through the spatula protrusion 14, the spatula protrusion 14 has high rigidity. Thus, the followability to the surface to be cleaned such as the scalp becomes good.

  In a preferred method for manufacturing the pore cleaning brush 10 of the present embodiment, the composite molded body 18 having the elastomer portion 19 and the hard resin portion 20 is integrally formed by two-color molding, insert molding, or the like, and is used as a base. The main body 17 is fixed by being fitted into the mounting opening 17a.

  Further, in the pore cleaning brush 10 of the present embodiment, a plurality of spatula-shaped protrusions 14 are arranged in series at a central portion of the brush surface 13 (a central portion of the brush surface 13 in the major axis direction and the minor axis direction) at intervals. The central projection group 14R is arranged, and the first side projection group 15R in which the first or second cone-shaped projections 15 and 16 are arranged in series at intervals on both sides of the central projection group. And a plurality of spatula-like protrusions 14 on the outer side thereof, and a second side protrusion group 14R ′ arranged in series at intervals. Between each protrusion group, the strip | belt-shaped space | interval area | region with a width | variety of 2-5 mm in which the protrusion is not arrange | positioned is extended along the major axis direction of the elliptical brush surface 13. FIG. This further prevents the hair from getting entangled or caught on the protrusions, and also improves the washing of the hair and the like by running water from the shower.

The spatula-like protrusion 14A shown in FIG. 8 is another preferred example of the protrusion with hard and soft protrusions in the present invention. The spatula-shaped protrusion 14A is formed of a hard resin 2 between the three first tip protrusions 14b made of elastomer and the adjacent first tip protrusions 14b at the tip portion protruding from the base portion 14a. Two second tip protrusions 14c are provided.
The spatula-shaped protrusion 14A shown in FIG. 8 can be arranged in any manner on the brush surface of the pore cleaning brush. For example, all of the spatula protrusions 14 in the pore cleaning brush 10 of the first embodiment may be replaced with the spatula protrusions 14A shown in FIG. 8, and in that case also, the pore cleaning brush of the first embodiment is used. 10 has the same effect.

FIGS. 9A and 9B show the conical protrusions 24 that are the main parts of the pore cleaning brush according to the second and third embodiments of the present invention. Each of the cone-shaped protrusions 24 shown in FIGS. 9A and 9B has a frustum-shaped base portion 24 a that protrudes from the brush surface 13, and the tip portion of the protrusion 24 extends from the base portion 24. Furthermore, it has the 1st front-end | tip protrusion 24b comprised by the elastomer which protrudes, and the 2nd front-end | tip protrusion 24c comprised by the hard resin which is resin harder than the elastomer which comprises the 1st front-end | tip protrusion 24b.
In the cone-shaped projections 24 shown in FIGS. 9A and 9B, a plurality of first tip projections 24b are annularly arranged so as to surround the central portion of the tip surface of the base portion 24a. A second tip protrusion 24c protrudes from the central portion surrounded by the tip protrusion 24b. The cone-shaped projection 24 shown in FIG. 9A includes four first tip projections 24b, and the cone-shaped projection 24 shown in FIG. 9B has three first tip projections 24b. It comprises. The number of first tip protrusions 24b arranged in an annular shape is preferably 3 or more, for example, 3 or more and 10 or less.

  The cone-shaped projections 24 shown in FIG. 9A or FIG. 9B can be arranged in any manner on the brush surface of the pore cleaning brush. For example, all of the plurality of protrusions protruding from the brush surface of the pore cleaning brush may be the cone-shaped protrusions 24 shown in FIG. 9A or 9B, and the plurality of protrusions protruding from the brush surface may be used. A part of the protrusions may be a cone-shaped protrusion 24 shown in FIG. 9A or 9B. Moreover, the spatula-shaped protrusion 14 shown in FIG. 5 and the cone-shaped protrusion 24 shown in FIG. 9 (a) or FIG. You can also. Moreover, the cone-shaped projection 24 shown in FIG. 9A and the cone-shaped projection 24 shown in FIG. 9B can be provided in one pore cleaning brush.

FIG. 10 shows a projection 34 with hard and soft projections that is a main part of a pore cleaning brush according to a fourth embodiment of the present invention. 10 includes a spatula-shaped base 34a protruding from the brush surface 13, a first tip protrusion 34b made of elastomer, and a first tip protrusion 34b, which further protrudes from the base 34a. And a second tip protrusion 34c made of a hard resin which is a harder resin than the constituent elastomer.
And the front-end | tip part of the 2nd front-end | tip protrusion 34c is divided | segmented into the some small protrusion 34d, as shown in FIG.10 (b). In the projection 34 with hard and soft projections shown in FIG. 10, the second tip projection 34c and all the small projections 34d are made of hard resin that penetrates the base 34a and projects from the tip of the base 34a.

  As shown in FIG. 10, the second tip protrusion 34 c has a small protrusion 34 d having a smaller diameter than the second tip protrusion 34 c, thereby preventing excessive stimulation to the skin. The pore cleaning effect can be improved. The number of the small protrusions 34d at the tip of the second tip protrusion 34 may be two, three, or five or more, for example, preferably two or more and ten or less. The small protrusion 34d is preferably tapered, but is not limited to a tapered shape.

  In addition, the description about the 1st front-end | tip protrusion 14b and the 2nd front-end | tip protrusion 14c of the processus | protrusion with a hard / soft protrusion in the pore cleaning brush 10 of 1st Embodiment is not contradicted, and the spatula-shaped processus | protrusion 14 shown in FIG. The description of the first tip projection and the second tip projection of the projection with hard and soft projections in the fourth embodiment is applicable.

The present invention is not limited to the above-described embodiments, and various modifications can be made.
For example, the pore cleaning brush according to the first embodiment has the spatula-shaped projection 14, the first cone-shaped projection 15 and the second cone-shaped projection 16 on the brush surface. In addition, only the spatula-shaped protrusion 14 may be formed on the brush surface, and only one of the spatula-shaped protrusion 14 and the first cone-shaped protrusion 15 and the second cone-shaped protrusion 16 is formed. Also good. The arrangement of the spatula-shaped protrusions 14 can be variously modified. For example, only one row of the plurality of spatula-shaped protrusions 14 in series in the major axis direction of the brush surface 13 may be formed, Only one row of a plurality of spatula protrusions 14 in series in the minor axis direction of the brush surface 13 may be formed. Further, the spatula-like protrusions 14 and the first cone-like protrusions 15 may be arranged in a staggered manner over the entire area of the brush surface 13.

  Further, a part of the spatula-shaped protrusion 14 in the pore cleaning brush of the first embodiment may be replaced with one having the spatula-shaped base portion 14a and the first tip protrusion 14b but not having the second tip protrusion 14c. good. In addition, the protrusions with hard and soft protrusions may have only one first tip protrusion 14b and one second tip protrusion 14c. Further, the first cone-shaped projection 15 or the second cone-shaped projection 16 is eliminated from the pore cleaning brush of the first embodiment, and the cone shown in FIG. 9A or FIG. 9B is used instead. The body protrusion 24 may be disposed.

  In addition, the spatula-shaped protrusions 14, 14A, 34 may have other flat cross-sectional shapes such as an ellipse and a rectangle in addition to the elliptical cross-sectional shape of the base portions 14a, 34a. The cone-shaped projection 15, the second cone-shaped projection 16, and the cone-shaped projection 24 shown in FIG. 9 may each have a substantially pyramid shape, a pyramid shape, or the like. Further, the tip protrusions of the spatula-like protrusion 14 and the first cone-like protrusion 15 may have a shape other than the conical shape.

Further, the first conical protrusion 15 may have only the tip protrusion 15b arranged at the center of the tip surface of the base portion 15a, or only the tip protrusion 15c arranged in an annular shape on the tip surface. You may have. Further, as the conical protrusions 15, 16, and 24, the base portions 15a and 24a are replaced with a truncated cone shape, the base portions 15a and 24a are truncated pyramid shapes, and the cross-sectional shapes of the base portions 15a and 24a are elliptical. A thing etc. may be provided. Examples of the base of the truncated pyramid include those having a cross-sectional shape of a polygon such as a triangle, a square, a pentagon, and a rhombus.
Further, the pore cleaning brush of the present invention may not have the gripping part 11 protruding from the base 12, or may be one that can be attached to the hand by inserting a hand into the annular insertion part. May be.

In addition, the description omitted in one embodiment and the requirements of only one embodiment can be applied to other embodiments as appropriate, and the requirements in each embodiment can be appropriately applied between the embodiments. Can be substituted for each other.
The pore cleaning brush of the present invention may be used for pores other than the head, and can also be used for body and hair care of pets, livestock and the like.

DESCRIPTION OF SYMBOLS 10 Pore cleaning brush 11 Grasping part 12 Base 13 Brush surface 14, 14A, 34 Spatial protrusion (protrusion with hard and soft protrusion)
14a, 34a Base portion 14b, 34b First tip projection 14c, 34c Second tip projection 15 First cone projection 15a Base portion 15b, 15c Tip projection 16 Second cone projection 17 Base body 24 Cone projection (Protrusions with hard and soft protrusions)
24a Base 24b First tip projection 24c Second tip projection

Claims (7)

A pore cleaning brush having a plurality of protrusions protruding from the brush surface of the base,
A part or all of the plurality of protrusions is a protrusion with hard and soft protrusions,
The protrusion with hard and soft protrusions has a base portion made of an elastomer protruding from the brush surface, and a first tip protrusion made of elastomer and an elastomer constituting the first tip protrusion at a tip portion of the protrusion. A brush for cleaning pores having a second tip protrusion made of a hard resin which is a hard resin.   2. The pore cleaning brush according to claim 1, wherein the second tip projection has a tapered shape toward the tip, and a thickness at a tip and a base end is smaller than a base end of the first tip projection.   3. The pore cleaning brush according to claim 1, wherein the brush has a plurality of first tip protrusions, and the second tip protrusions exist between the first tip protrusions.   The protrusion with hard and soft protrusions has a spatula-like protrusion, and the spatula-like protrusion has a flat cross-sectional shape at the base, and the first tip protrusion and the second tip protrusion have the flat cross-section. The brush for pore cleaning according to any one of claims 1 to 3, wherein the brush is formed side by side in the major axis direction of the shape.   The protrusion with the hard and soft protrusions includes a frustum-shaped protrusion, and the base has a truncated cone shape or a truncated pyramid shape, and the first tip protrusion and the second tip protrusion are formed on the tip portion. The pore cleaning brush according to any one of claims 1 to 4, which is provided.   The pore cleaning brush according to any one of claims 1 to 5, wherein the second tip protrusion includes a portion protruding from a tip of the base portion in a hard resin partially disposed in the base portion. The pore cleaning brush according to claim 6, wherein the hard resin constituting the second tip protrusion is present through the base portion in a height direction thereof.

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